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Texas Instruments DRV8329AREER
- Part No.:
- DRV8329AREER
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 36-WFQFN Exposed Pad
- Datasheet:
-
DRV8329AREER.pdf
- Description:
- PROTOTYPE
- Quantity:
- Payment:
- Shipping:
Inventory:2,297
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Product details
Overview
DRV8329AREER from Texas Instruments is a 4.5–60 V three-phase BLDC gate driver IC that drives six N-channel MOSFETs (3 high-side + 3 low-side) using bootstrap architecture with trickle charge pump support for 100% PWM duty cycle. It integrates a low-offset current sense amplifier (gain selectable: 5/10/20/40 V/V), 3.3-V ±3% LDO (80 mA), and independent DRVOFF shutdown path - deployed in cordless power tools and e-mobility motor control stages.
For engineers reviewing the DRV8329AREER datasheet, DRV8329AREER pinout, DRV8329AREER application, or DRV8329AREER equivalent, key selection considerations include bootstrap-based 1-A source / 2-A sink gate drive capability, 4-ns typical propagation delay matching between phases, adjustable deadtime (50–2000 ns via DT pin), -10 V negative transient tolerance on SHx pins, and hardware-configurable 6x PWM mode.
Technical Context
The DRV8329AREER implements a bootstrap-gated half-bridge architecture with integrated trickle charge pump enabling continuous high-side conduction. Its gate drivers deliver 1000-mA peak source and 2000-mA peak sink current per channel, with matched propagation delays (±4 ns phase-to-phase) critical for precise three-phase commutation timing.
It features a single-shunt current sensing topology with programmable gain and <2-mV input offset, alongside independent fault detection paths including VDS overcurrent (via VDSLVL pin), GVDD/PVDD/BST undervoltage lockouts, thermal shutdown, and open-drain nFAULT reporting - all operating across –40°C to 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.5 V to 60 V PVDD - supports wide-input battery systems (e.g., 12–48 V nominal packs in power tools and e-bikes). |
| Gate Drive Current | 1000-mA peak source / 2000-mA peak sink - sufficient to rapidly charge/discharge gate capacitance of medium-power N-MOSFETs. |
| Propagation Delay Match | ±4 ns phase-to-phase - ensures synchronized switching across A/B/C legs, minimizing torque ripple in BLDC/PMSM motors. |
| Current Sense Gain | Selectable 5/10/20/40 V/V - enables accurate shunt-based current measurement across diverse motor current ranges without external op-amps. |
| LDO Output | 3.3 V ±3%, 80 mA AVDD - powers external microcontrollers or serves as reference for current sense amplifier, reducing BOM count. |
| Deadtime Adjustment | 50–2000 ns via resistor on DT pin - prevents shoot-through in high-voltage motor bridges while maintaining efficiency. |
| Sleep Current | <1 µA at 25°C - enables ultra-low-power standby in battery-operated devices such as cordless vacuums and drones. |
Pinout & Package
DRV8329AREER uses a 36-pin VQFN package (5.00 mm × 4.00 mm) with exposed thermal pad connected to GND for enhanced thermal dissipation in motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INHA/INHB/INHC | High-side logic inputs | Accept 3.3-V/5-V PWM signals to control respective high-side gate outputs (GHA/GHB/GHC); TTL-compatible thresholds. |
| INLA/INLB/INLC | Low-side logic inputs | Directly drive low-side gate outputs (GLA/GLB/GLC); independent of high-side control for flexible commutation schemes. |
| GHA/GHB/GHC | High-side gate drivers | Output stage driving gates of external N-MOSFETs; each rated for 65-V tolerant operation with 1-A source/2-A sink capability. |
| GLA/GLB/GLC | Low-side gate drivers | Drive low-side N-MOSFET gates referenced to LSS; include internal 100-kΩ passive pull-down for safe default state. |
| BSTA/BSTB/BSTC | Bootstrap outputs | Provide floating supply for high-side drivers; require 1-µF ceramic capacitors to respective SHx pins for proper bootstrap operation. |
| SHA/SHB/SHC | High-side source nodes | Connect to sources of high-side MOSFETs; serve as VDS monitor inputs and return paths for high-side gate drive current. |
| LSS | Low-side source common | Common connection point for all low-side MOSFET sources; used for VDS monitoring and current sense amplifier reference path. |
| nFAULT | Fault indicator | Open-drain output pulled low during any fault condition (UVLO, OCP, OTSD); requires external 3.3–5.0 V pull-up. |
| nSLEEP | Sleep mode control | Active-low entry into ultra-low-power sleep mode (<1 µA); 1–1.2 µs pulse resets faults without entering sleep. |
| DRVOFF | Independent shutdown | Hardware override that forces all gate outputs into pull-down state - bypasses digital logic for fail-safe MOSFET turn-off. |
| VDSLVL | VDS overcurrent threshold | Analog input (0.1–2.5 V) setting MOSFET VDS trip point for phase-leg short-circuit protection. |
| DT | Deadtime configuration | Resistor-to-GND sets deadtime from 55 ns (floating) to 2000 ns (390 kΩ), preventing shoot-through in high dv/dt environments. |
| CSAGAIN | Current sense gain select | 4-level analog input selecting gain: GND = 5 V/V, 50 kΩ = 10 V/V, 200 kΩ = 20 V/V, Hi-Z = 40 V/V. |
| SO | Current sense output | Amplified shunt voltage output; supports RC filtering and capacitive loads up to 500 pF with ≤1.7 µs settling time. |
Key Features
| Feature | Design Value |
|---|---|
| Trickle charge pump | Enables 100% high-side PWM duty cycle without external boost circuitry - essential for field-oriented control (FOC) and regenerative braking. |
| Integrated 3.3-V LDO | 80-mA AVDD regulator eliminates need for external bias supply; tight ±3% tolerance ensures stable reference for MCU and CSA. |
| Hardware-only configuration | No firmware or SPI required - all settings (deadtime, gain, PWM mode) configured via resistors and logic pins for deterministic startup behavior. |
| 65-V tolerant nSLEEP pin | Allows direct connection to high-voltage system rails for wake-up signaling without level-shifting - simplifies power sequencing in 48-V+ systems. |
| Negative transient immunity | Withstands –10 V transients on SHx pins - protects against inductive kickback during fast switching in high-L di/dt motor phases. |
Applications
| Power Tools Motor Control | E-Bike Mid-Drive Inverter |
|---|---|
|
Use Scenario: Cordless drill/driver with variable-speed BLDC motor requiring robust overcurrent and thermal protection under high-torque load. IC Role / Device Role / Timing Role: Three-phase gate driver managing six external N-MOSFETs; provides matched propagation delay and hardware-configurable deadtime for clean commutation. Use Value: Integrated VDS OCP and nFAULT reporting enable instantaneous MOSFET short-circuit shutdown, preventing FET destruction during stall events. |
Use Scenario: 36–48 V mid-drive e-bike controller needing compact, efficient motor phase switching with minimal external components. IC Role / Device Role / Timing Role: Gate driver with integrated 3.3-V LDO powers MCU and current sense reference; bootstrap architecture eliminates need for isolated supplies. Use Value: 1000-mA source / 2000-mA sink drive strength ensures fast MOSFET switching at 20 kHz PWM, reducing conduction losses and audible noise. |
| Industrial Robotic Joint Actuator | Drones ESC Module |
|
Use Scenario: Precision servo actuator in collaborative robot arm requiring low-jitter timing and accurate current feedback for torque control. IC Role / Device Role / Timing Role: Gate driver with ±4 ns phase-to-phase propagation match and low-offset current sense amplifier (≤2 mV offset) for closed-loop FOC. Use Value: Adjustable CSA gain (5–40 V/V) allows optimal signal-to-noise ratio across wide motor current range (0.5–30 A), improving torque linearity. |
Use Scenario: Small-form-factor ESC for multirotor drone demanding ultra-low quiescent current and fast fault response. IC Role / Device Role / Timing Role: Compact 5×4 mm QFN gate driver with <1 µA sleep current and 1.2 µs fault reset pulse - extends flight time and enables rapid recovery. Use Value: Independent DRVOFF pin allows flight controller to force immediate gate shutdown during IMU-detected instability, enhancing safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8323RSRT | Same 36-pin VQFN package; includes SPI interface and diagnostics but lacks trickle charge pump - limited to <99% duty cycle. | Preferred where configurability and telemetry outweigh need for full-duty-cycle operation (e.g., industrial HVAC fans). | Choose DRV8323RSRT if SPI register access and fault logging are required; avoid when 100% PWM duty cycle is mandatory. |
| MP6542GQ-P | 40-V max PVDD; no integrated CSA; fixed 5-V LDO; smaller 24-pin QFN - lower integration and voltage rating. | Suitable for cost-sensitive, lower-power appliances (e.g., small fans) where external current sensing is acceptable. | Choose MP6542GQ-P only for sub-40 V, non-critical applications with external current sensing and simpler layout constraints. |
Compared with DRV8323RSRT and MP6542GQ-P, the DRV8329AREER uniquely combines 60-V operation, trickle charge pump for 100% duty cycle, integrated CSA with selectable gain, and hardware-only configuration - making it optimal for high-performance, battery-powered BLDC systems where reliability and minimal external components are critical.
Availability
DRV8329AREER is available at Aetrix Electronics and suitable for cordless power tools, e-bike inverters, and industrial robotic actuators requiring stable component supply, long-term production continuity, and automotive-grade reliability.
Supply support for DRV8329AREER includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in motor control ICs and high-reliability power management solutions.
The DRV8329 family is designed specifically for high-efficiency, high-voltage three-phase BLDC and PMSM motor drives - targeting portable and mobility applications where compact size, thermal robustness, and hardware-deterministic operation are essential.
FAQ
What is the maximum operating voltage for DRV8329AREER?
The DRV8329AREER supports a PVDD supply range of 4.5 V to 60 V, with absolute maximum ratings up to 65 V on PVDD and 80 V on BSTx pins. This enables use in 48-V battery systems common in cordless power tools and e-mobility applications, while its -10 V transient tolerance on SHx pins improves ruggedness against inductive spikes.
Does DRV8329AREER support 100% PWM duty cycle operation?
Yes, DRV8329AREER includes a trickle charge pump that sustains high-side gate drive voltage during continuous conduction, enabling true 100% PWM duty cycle - a requirement for field-oriented control (FOC) algorithms and regenerative braking in BLDC motor systems.
How is current sensing implemented in DRV8329AREER?
DRV8329AREER integrates a low-offset current sense amplifier optimized for single-shunt topology. Gain is set via CSAGAIN pin (5/10/20/40 V/V), input offset is ≤±2 mV, and output settles to ±1% in ≤1.7 µs. The SO pin delivers amplified shunt voltage with rail-to-rail swing referenced to CSAREF.
What protection features does DRV8329AREER provide?
DRV8329AREER includes PVDD/GVDD/BST undervoltage lockout, VDS-based overcurrent protection (configurable via VDSLVL), shunt-based OCP, thermal shutdown, and fault reporting via open-drain nFAULT pin. All protections trigger immediate gate shutdown and assert nFAULT low.
Can DRV8329AREER be used with 3.3-V microcontrollers?
Yes, DRV8329AREER accepts 3.3-V logic inputs on INHx/INLx/nSLEEP/DRVOFF pins with VIH ≥ 2.2 V and VIL ≤ 0.8 V. Its integrated 3.3-V AVDD LDO (±3%, 80 mA) can also power compatible MCUs, eliminating need for external regulators in many designs.
DRV8329AREER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 36-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (3)
- Interface:
- -
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2A
- Voltage - Supply:
- 4.5V ~ 60V
- Voltage - Load:
- 65V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-WQFN (5x4)
DRV8329AREER FAQ
1.How can I place an order for DRV8329AREER through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8329AREER on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8329AREER reliable?
The price and inventory of DRV8329AREER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8329AREER is usually 5 days.
3.What payment methods are accepted for DRV8329AREER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8329AREER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8329AREER?
DRV8329AREER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8329AREER order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8329AREER?
For technical support, including DRV8329AREER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8329AREER requirements.
6.How does Aetrix verify that DRV8329AREER is sourced from the original manufacturer or authorized distributors?
All DRV8329AREER products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8329AREER meets industry standards.
7.What is the process for return or replacement of DRV8329AREER?
All DRV8329AREER units undergo pre-shipment inspection (PSI). If there is an issue with DRV8329AREER, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8329AREER part is unused and in its original packaging.
Return procedure for DRV8329AREER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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